EPM570 Altera, EPM570 Datasheet - Page 35

• Manufacturer Part Number: EPM570
• Description: MAX II Device Family
• Manufacturer: Altera

Figure 2–19. MAX II IOE Structure
Note to
(1)
Altera Corporation
December 2004
Data_in
Available in EPM1270 and EPM2210 devices only.
Figure
Fast_out
2–19:
Data_out
Fast I/O Connection
A dedicated fast I/O connection from the adjacent LAB to the IOEs within
an I/O block provides faster output delays for clock-to-output and t
propagation delays. This connection exists for data output signals, not
output enable signals or input signals.
illustrate the fast I/O connection.
I/O Blocks
The IOEs are located in I/O blocks around the periphery of the MAX II
device. There are up to seven IOEs per row I/O block (5 maximum in the
EPM240 device) and up to four IOEs per column I/O block. Each column
or row I/O block interfaces with its adjacent LAB and MultiTrack
OE
Core Version a.b.c variable
Drive Strength Control
Programmable
Input Delay
Open-Drain Output
DEV_OE
Slew Control
Optional Schmitt
Trigger Input
Optional
PCI Clamp (1)
V
CCIO
Figures
MAX II Device Handbook, Volume 1
V
CCIO
2–20, 2–21, and
I/O Pin
Programmable
Pull-Up
MAX II Architecture
Optional Bus-Hold
Circuit
2–22
PD
2–29